Twilio可编程短信

Question

我在使用twilio可编程短信时遇到异常

com.twilio.exception.ApiException: api.twilio.com
at com.twilio.http.NetworkHttpClient.makeRequest(NetworkHttpClient.java:128)
at com.twilio.http.HttpClient.reliableRequest(HttpClient.java:42)
at com.twilio.http.HttpClient.reliableRequest(HttpClient.java:25)
at com.twilio.http.TwilioRestClient.request(TwilioRestClient.java:42)
at com.twilio.rest.api.v2010.account.MessageCreator.create
(MessageCreator.java:391)
at 
com.twilio.rest.api.v2010.account.MessageCreator.create
(MessageCreator.java:25)
at com.twilio.base.Creator.create(Creator.java:45)
at Example.main(Example.java:24)

以下是我正在使用的

import com.twilio.Twilio;
import com.twilio.rest.api.v2010.account.Message;
import com.twilio.rest.api.v2010.account.MessageCreator;
import com.twilio.type.PhoneNumber;
import com.twilio.exception.ApiException;

import java.math.BigDecimal;
import java.net.URI;
import java.util.ArrayList;
import java.util.List;

public class Example 
{
private final static String ACCOUNT_SID = 
System.getenv("TWILIO_ACCOUNT_SID");
private final static String AUTH_TOKEN = System.getenv("TWILIO_AUTH_TOKEN");

public static void main(String[] args) {
    Twilio.init(ACCOUNT_SID, AUTH_TOKEN);

    Message sms;
    try {
        sms = Message.creator(new PhoneNumber("+919250057864"), new 
        PhoneNumber("+16672132498"), "").create();
        System.out.println(sms.getSid());
    } catch (ApiException e) {
        // TODO Auto-generated catch block
        System.out.println(e.getMessage());
        e.printStackTrace();
    }

}
}

我正在使用twilio-7.15.6-jar-with-dependencies库。